CN104004102A - Yellowing system for viscose fiber production - Google Patents
Yellowing system for viscose fiber production Download PDFInfo
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- CN104004102A CN104004102A CN201410247271.7A CN201410247271A CN104004102A CN 104004102 A CN104004102 A CN 104004102A CN 201410247271 A CN201410247271 A CN 201410247271A CN 104004102 A CN104004102 A CN 104004102A
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- alkali
- dissolved water
- xanthating machine
- viscose fiber
- yellowing
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Abstract
The invention provides a yellowing system for viscose fiber production. The yellowing system comprises a yellowing machine, a discharging valve, a discharging pipeline and a pulverizer, wherein the yellowing machine, the discharging pipeline and the pulverizer are sequentially connected to one another, and the discharging valve is arranged between the yellowing machine and the discharging pipeline. The yellowing system is characterized in that the discharging pipeline is connected to a liquid inlet pipe; after yellowing reaction ends, dissolved alkali and primary dissolved water are added to the yellowing machine, after addition ends, the discharging valve is opened, meanwhile, secondary dissolved water is added to the discharging pipeline through the liquid inlet pipe, when discharging reaches above 90%, flushing alkali is added to the yellowing machine, and after flushing ends, the discharging valve is closed, and the pulverizer is stopped. The yellowing system has the advantages that the production cycle of the yellowing machine is effectively shortened, the capacity of the yellowing machine is improved, the operational stability of equipment is improved, the operating current of the equipment is reduced, and the energy consumption is reduced.
Description
Technical field
The invention belongs to viscose fiber production field, be specifically related to the yellow system in a kind of viscose fiber production.
background of invention
As the saying goes: " seven points of glues, three points of spinning." quality and the fiber product quality of visible viscose quality have larger impact, what viscose quality was played a decisive role is the control to yellow technique.The length of the cycle time of yellow, in yellow process, the control of temperature etc. is all the key issue that determines viscose quality.
The viscose fiber yellow processing step of prior art is: after yellow reaction finishes; in from xanthating machine top toward xanthating machine, add successively and once dissolve that alkali, secondary dissolve alkali, dissolved water carries out just dissolving; make the viscose glue in viscose staple fibre production; then open discharging pump discharging; material adds flushing alkali will go out time; material is closed after rolling bottom valve, is stopped making glue pump, stopping xanthate acid pulverizer, a now yellow end cycle.A yellow cycle required time is 110 minutes, and the whole yellow time in yellow cycle only needed about 50 minutes, and all the other times are more short better.
There is following shortcoming in the existing yellow discharging technology that adds water:
1, the xanthating machine production cycle longer, production capacity is lower;
2, discharging pump and pulverizer electric current are high when xanthating machine discharging, and energy consumption is high, and very easily tripping operation, cause yellow cycle stretch-out;
3, esterified degree is inhomogeneous, easily causes discharging pump stuck, equipment fluctuation of service.
As 200410084025.0, name is called the patent of invention of " a kind of yellow method of producing for viscose fiber ", discloses a kind of yellow method of producing for viscose fiber, and its technical scheme is: soda cellulose and CS
2yellow process completed by dry xanthation and wet method yellow two steps, soda cellulose first with CS
2carry out dry xanthation, and then add alkali lye to carry out wet method yellow in soda cellulose, until yellow end of processing.The mode that this patent adopts dry wet method yellow to combine, the viscose glue phenomenon of uniting is obvious, and the diameter of uniting can reach more than 1 meter, is unfavorable for follow-up dissolving and mills.
Summary of the invention
The present invention is directed to above-mentioned technical problem, the yellow system in a kind of viscose fiber production is provided.Native system can add dissolved water to the discharge pipe of xanthating machine, has effectively realized the shortening xanthating machine production cycle, improves xanthating machine production capacity, improves stable equipment operation, and reduction equipment uses electric current, reduces the object of energy consumption.
For achieving the above object, the present invention adopts following technical scheme:
Yellow system in a kind of viscose fiber production, comprise xanthating machine, discharge valve, discharge pipe, pulverizer, described xanthating machine, discharge pipe, pulverizer connect successively, between xanthating machine and discharge pipe, be provided with discharge valve, it is characterized in that: on described discharge pipe, be connected with liquid-inlet pipe; After yellow reaction finishes, in xanthating machine, add dissolving alkali and a dissolved water, after finishing, open discharge valve, in discharge pipe, add secondary dissolved water by liquid-inlet pipe simultaneously, discharging reaches 90% when above, in xanthating machine, adds flushing alkali, rinses and completely closes discharge valve, stops pulverizer.
Yellow system of the present invention by connecting liquid-inlet pipe on discharge pipe, dissolved water is added at twice, in discharging, in discharge pipe, add secondary dissolved water by liquid-inlet pipe, not only save the time adding water, and, water is evenly mixed in pulverizer with cellulose sulfonate, and than the better effects if that adds water in xanthating machine and mix, the esterified degree of cellulose sulfonate is more even, avoided plugging, equipment operation is more stable.On the other hand, because dissolved water adds through piping, the running current of pulverizer and discharging pump obviously declines; The mixed viscose glue of pulverizer enters into the milling system that can directly start predissolve after predissolve machine, shortens the dissolving cycle, can also shorten discharging time, thereby further shorten the yellow cycle simultaneously.
Dissolving alkali of the present invention divides and once dissolves alkali and secondary and dissolve alkali and successively add, and in adding secondary to dissolve alkali, adds dissolved water one time.Add the object of once dissolving alkali and be and add that to start high-speed stirring load after alkali little, be difficult for tripping operation, adding the object that secondary dissolves alkali is that under xanthating machine high-speed stirring, mixing effect is better, and solute effect is better.
Preferably, after described once dissolving alkali finishes, xanthating machine speed-raising adds secondary to dissolve alkali extremely at a high speed again in xanthating machine, and better mixed viscose and dissolving alkali, improve just solute effect.
Preferably, the described mass ratio that once dissolves alkali and secondary dissolving alkali is 1:3 ~ 1:1.
The mass ratio of a dissolved water of the present invention and secondary dissolved water is 1:4 ~ 2:3, mixing while effectively ensureing discharging.
The flow velocity of dissolving alkali of the present invention is 20 ~ 28 L/s, ensures solute effect.
The flushing pressure of flushing alkali of the present invention is 0.2 ~ 0.6 Mpa, ensures developing result.
The temperature of dissolving alkali of the present invention and dissolved water is 3 ~ 18 DEG C.
Beneficial effect of the present invention is:
1, yellow system of the present invention by connecting liquid-inlet pipe on discharge pipe, dissolved water is added at twice, in discharging, in discharge pipe, add secondary dissolved water by liquid-inlet pipe, not only save the time adding water, and, water is evenly mixed in pulverizer with cellulose sulfonate, than the better effects if that adds water in xanthating machine and mix, the esterified degree of cellulose sulfonate is more even, can avoid uniting, unite diameter lower than 20 centimetres, avoided plugging, equipment operation is more stable, is conducive to follow-up dissolving and milling work order simultaneously.
2, on the other hand, because dissolved water adds through piping, the running current of pulverizer and discharging pump obviously declines; The mixed viscose glue of pulverizer enters into the milling system that can directly start predissolve after predissolve machine, has saved follow-up mixed processes, shortens the dissolving cycle, can also shorten discharging time, thereby further shorten the yellow cycle simultaneously.
3, because yellow system energy efficient of the present invention, the esterified degree of product are high, the measured feature of matter, the interests of bringing to enterprise are considerable, the production capacity of every xanthating machine reaches 20,000 tons/platform/year, and production capacity improves 54%, saves power consumption 200,000 degree/year/platforms, save power consumption 35 %, the esterified degree of product reaches more than 50, under stay-in-grade prerequisite, has greatly saved cost.
4, the present invention is after once dissolving alkali and finishing, and xanthating machine speed-raising is to adding secondary to dissolve alkali more at a high speed in xanthating machine, adds that to restart high-speed stirring load after alkali little, is difficult for tripping operation, ensures that high-speed stirring can start smoothly; The object that adds secondary alkali is better mixed viscose and dissolving alkali under xanthating machine high-speed stirring, improves just solute effect.
Brief description of the drawings
Fig. 1 is the schematic diagram of viscose fiber production yellow system of the present invention.
Embodiment
Below in conjunction with embodiment, essentiality content of the present invention is described in further detail.
Embodiment 1
Yellow system in a kind of viscose fiber production, comprise xanthating machine, discharge valve, discharge pipe, pulverizer, described xanthating machine, discharge pipe, pulverizer connect successively, between xanthating machine and discharge pipe, be provided with discharge valve, it is characterized in that: on described discharge pipe, be connected with liquid-inlet pipe; After yellow reaction finishes, in xanthating machine, add dissolving alkali and a dissolved water, after finishing, open discharge valve, in discharge pipe, add secondary dissolved water by liquid-inlet pipe simultaneously, discharging reaches 90% when above, in xanthating machine, adds flushing alkali, rinses and completely closes discharge valve, stops pulverizer.
Embodiment 2
Yellow system in a kind of viscose fiber production, comprise xanthating machine, discharge valve, discharge pipe, pulverizer, described xanthating machine, discharge pipe, pulverizer connect successively, between xanthating machine and discharge pipe, be provided with discharge valve, it is characterized in that: on described discharge pipe, be connected with liquid-inlet pipe; After yellow reaction finishes, in xanthating machine, add dissolving alkali and a dissolved water, after finishing, open discharge valve, in discharge pipe, add secondary dissolved water by liquid-inlet pipe simultaneously, discharging reaches 90% when above, in xanthating machine, adds flushing alkali, rinses and completely closes discharge valve, stops pulverizer.
Described dissolving alkali divides and once dissolves alkali and secondary and dissolve alkali and successively add, and in adding secondary to dissolve alkali, adds dissolved water one time.
Embodiment 3
The embodiment of the present embodiment is substantially the same manner as Example 2, on this basis:
After described once dissolving alkali finishes, xanthating machine speed-raising is to adding secondary to dissolve alkali in xanthating machine more at a high speed.
Embodiment 4
The embodiment of the present embodiment is substantially the same manner as Example 2, on this basis:
After described once dissolving alkali finishes, xanthating machine speed-raising is to adding secondary to dissolve alkali in xanthating machine more at a high speed.
The described mass ratio that once dissolves alkali and secondary dissolving alkali is 1:3.
Embodiment 5
The embodiment of the present embodiment is substantially the same manner as Example 2, on this basis:
After described once dissolving alkali finishes, xanthating machine speed-raising is to adding secondary to dissolve alkali in xanthating machine more at a high speed.
The described mass ratio that once dissolves alkali and secondary dissolving alkali is 1:1.
The mass ratio of a described dissolved water and secondary dissolved water is 1:4.
Embodiment 6
The embodiment of the present embodiment is substantially the same manner as Example 2, on this basis:
After described once dissolving alkali finishes, xanthating machine speed-raising is to adding secondary to dissolve alkali in xanthating machine more at a high speed.
The described mass ratio that once dissolves alkali and secondary dissolving alkali is 1:2.
The mass ratio of a described dissolved water and secondary dissolved water is 2:3.
The flow velocity of described dissolving alkali is 28 L/s.
Embodiment 7
The embodiment of the present embodiment is substantially the same manner as Example 2, on this basis:
After described once dissolving alkali finishes, xanthating machine speed-raising is to adding secondary to dissolve alkali in xanthating machine more at a high speed.
The described mass ratio that once dissolves alkali and secondary dissolving alkali is 1:1.5.
The mass ratio of a described dissolved water and secondary dissolved water is 1:2.
The flow velocity of described dissolving alkali is 20 L/s.
The flushing pressure of described flushing alkali is 0.2 Mpa.
Embodiment 8
The embodiment of the present embodiment is substantially the same manner as Example 2, on this basis:
After described once dissolving alkali finishes, xanthating machine speed-raising is to adding secondary to dissolve alkali in xanthating machine more at a high speed.
The described mass ratio that once dissolves alkali and secondary dissolving alkali is 1:2.5.
The mass ratio of a described dissolved water and secondary dissolved water is 1:3.
The flow velocity of described dissolving alkali is 25 L/s.
The flushing pressure of described flushing alkali is 0.6 Mpa.
The temperature of described dissolving alkali and dissolved water is 3 DEG C.
Embodiment 9
The embodiment of the present embodiment is substantially the same manner as Example 2, on this basis:
After described once dissolving alkali finishes, xanthating machine speed-raising is to adding secondary to dissolve alkali in xanthating machine more at a high speed.
The described mass ratio that once dissolves alkali and secondary dissolving alkali is 1:1.8.
The mass ratio of a described dissolved water and secondary dissolved water is 1:2.5.
The flow velocity of described dissolving alkali is 22 L/s.
The flushing pressure of described flushing alkali is 0.3 Mpa.
The temperature of described dissolving alkali and dissolved water is 18 DEG C.
Embodiment 10
The embodiment of the present embodiment is substantially the same manner as Example 2, on this basis:
After described once dissolving alkali finishes, xanthating machine speed-raising is to adding secondary to dissolve alkali in xanthating machine more at a high speed.
The described mass ratio that once dissolves alkali and secondary dissolving alkali is 1:2.8.
The mass ratio of a described dissolved water and secondary dissolved water is 1:3.5.
The flow velocity of described dissolving alkali is 26 L/s.
The flushing pressure of described flushing alkali is 0.4Mpa.
The temperature of described dissolving alkali and dissolved water is 10 DEG C.
Embodiment 11
The embodiment of the present embodiment is substantially the same manner as Example 2, on this basis:
After described once dissolving alkali finishes, xanthating machine speed-raising is to adding secondary to dissolve alkali in xanthating machine more at a high speed.
The described mass ratio that once dissolves alkali and secondary dissolving alkali is 1:2.6.
The mass ratio of a described dissolved water and secondary dissolved water is 1:2.2.
The flow velocity of described dissolving alkali is 24 L/s.
The flushing pressure of described flushing alkali is 0.5 Mpa.
The temperature of described dissolving alkali and dissolved water is 15 DEG C.
Claims (8)
1. the yellow system in a viscose fiber production, comprise xanthating machine, discharge valve, discharge pipe, pulverizer, described xanthating machine, discharge pipe, pulverizer connect successively, between xanthating machine and discharge pipe, be provided with discharge valve, it is characterized in that: on described discharge pipe, be connected with liquid-inlet pipe; After yellow reaction finishes, in xanthating machine, add dissolving alkali and a dissolved water, after finishing, open discharge valve, in discharge pipe, add secondary dissolved water by liquid-inlet pipe simultaneously, discharging reaches 90% when above, in xanthating machine, adds flushing alkali, rinses and completely closes discharge valve, stops pulverizer.
2. the yellow system of a kind of viscose fiber according to claim 1 in producing, is characterized in that: described dissolving alkali divides and once dissolves alkali and secondary and dissolve alkali and successively add, and in adding secondary to dissolve alkali, adds dissolved water one time.
3. the yellow system in a kind of viscose fiber production according to claim 2, is characterized in that: after described once dissolving alkali finishes, xanthating machine speed-raising is to adding secondary to dissolve alkali in xanthating machine more at a high speed.
4. the yellow system in a kind of viscose fiber production according to claim 2, is characterized in that: the described mass ratio that once dissolves alkali and secondary dissolving alkali is 1:3 ~ 1:1.
5. the yellow system of a kind of viscose fiber according to claim 1 in producing, is characterized in that: the mass ratio of a described dissolved water and secondary dissolved water is 1:4 ~ 2:3.
6. the yellow system in a kind of viscose fiber production according to claim 1, is characterized in that: the flow velocity of described dissolving alkali is 20 ~ 28 L/s.
7. the yellow system in a kind of viscose fiber production according to claim 1, is characterized in that: the flushing pressure of described flushing alkali is 0.2 ~ 0.6 Mpa.
8. the yellow system in a kind of viscose fiber production according to claim 1, is characterized in that: the temperature of described dissolving alkali and dissolved water is 3 ~ 18 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410247271.7A CN104004102B (en) | 2014-06-06 | 2014-06-06 | Yellow system in a kind of viscose fiber production |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410247271.7A CN104004102B (en) | 2014-06-06 | 2014-06-06 | Yellow system in a kind of viscose fiber production |
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| CN104004102A true CN104004102A (en) | 2014-08-27 |
| CN104004102B CN104004102B (en) | 2016-02-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105418771A (en) * | 2015-12-11 | 2016-03-23 | 宜宾海丝特纤维有限责任公司 | State feedback system of xanthating machine locator |
| CN108250305A (en) * | 2018-02-12 | 2018-07-06 | 赛得利（福建）纤维有限公司 | A kind of yellow subsequent process that can be improved viscose glue and prepare production capacity |
| CN112083743A (en) * | 2020-09-07 | 2020-12-15 | 赛得利(江苏)纤维有限公司 | A etiolation temperature regulating system for viscose fiber production |
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| CN1618816A (en) * | 2004-10-18 | 2005-05-25 | 保定天鹅股份有限公司 | Xanthating method used in viscous fiber production |
| CN1986571A (en) * | 2006-10-24 | 2007-06-27 | 唐山三友集团化纤有限公司 | Technological process of controlling yellowing of short viscose fiber by means of recipe program |
| CN102393694A (en) * | 2011-09-27 | 2012-03-28 | 宜宾海丝特纤维有限责任公司 | Yellowing automatic control system in production of short fiber stock solution viscose |
| CN203960098U (en) * | 2014-06-06 | 2014-11-26 | 成都丽雅纤维股份有限公司 | The yellow system that viscose fiber is produced |
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2014
- 2014-06-06 CN CN201410247271.7A patent/CN104004102B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1618816A (en) * | 2004-10-18 | 2005-05-25 | 保定天鹅股份有限公司 | Xanthating method used in viscous fiber production |
| CN1986571A (en) * | 2006-10-24 | 2007-06-27 | 唐山三友集团化纤有限公司 | Technological process of controlling yellowing of short viscose fiber by means of recipe program |
| CN102393694A (en) * | 2011-09-27 | 2012-03-28 | 宜宾海丝特纤维有限责任公司 | Yellowing automatic control system in production of short fiber stock solution viscose |
| CN203960098U (en) * | 2014-06-06 | 2014-11-26 | 成都丽雅纤维股份有限公司 | The yellow system that viscose fiber is produced |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105418771A (en) * | 2015-12-11 | 2016-03-23 | 宜宾海丝特纤维有限责任公司 | State feedback system of xanthating machine locator |
| CN108250305A (en) * | 2018-02-12 | 2018-07-06 | 赛得利（福建）纤维有限公司 | A kind of yellow subsequent process that can be improved viscose glue and prepare production capacity |
| CN112083743A (en) * | 2020-09-07 | 2020-12-15 | 赛得利(江苏)纤维有限公司 | A etiolation temperature regulating system for viscose fiber production |
| CN112083743B (en) * | 2020-09-07 | 2021-07-09 | 赛得利(江苏)纤维有限公司 | A etiolation temperature regulating system for viscose fiber production |
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| CN104004102B (en) | 2016-02-10 |
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